Fourth of his right to alvin h



R; J. CLAY. Toy-Watch.

Patented Jan. 27,1880.

N4 PETERS. PHOTOALXTHOFRAPHER. WASmNGToN. D C

UNITED STATES PATENT OFFICE.

ROBERT J. CLAY, OF VVATERBUBY, CONNECTICUT, ASSIGNOE OF ONE FOURTH OF HIS RIGHT TO ALVIN H. DODD, OF NEW YORK, N. Y.

TOY WATCH.

SPECIFICATION forming part of Letters Patent No. 223,884, dated January 27, 1880.

Application filed October 31, 1879.

To all whom it may concern Be it known that I, ROBERT J. CLAY, of the city of WVatcrbnry, in the county of New Haven and State of Connecticut, have invented certain new and usefulImprovements in Toy Watches, of which the following is a specification.

This invention has for its object the construction of certain parts of toy watches, whereby theirmamifacture is rendered extremely cheap and the parts are more correctly assembled or put together.

One of my improvements consists in a gearv wheel having tongues or pieces cut therefrom and bent outward at an angle to the body of the wheel, forming the teeth or leaves of a pinion, such wheel and pinion being suitable for the minute-wheel and hour'pinion of a toy watch.

Another of my improvements consists in novel means for securing the front and back plates of the watch-movement together, and also in means whereby the several parts of a watch may be more readily assembled together and secured in a watch-case.

My invention consists, also, in a novel device for steadying the arbor of the main wheel and for securing the inner end of the mainspring to said arbor.

In the accompanying drawings, Figure 1 represents a face view of a watch embodying my invention. Fig. 2 represents a transverse section through the same. Fig. 8 represents a back view of the watch-movement, the back of the case being removed. Figs. at and 5 represent, respectively, sections on the dotted lines .00 0c and y y, Fig. 2. Fig. 6 represents a perspective view of the main wheel and a portion of the mainspring. Fig. 7 represents a perspective View of a wheel and pinion formed from a single piece of metal, and Fig. 8 represents a perspective view of a device for securing one end of the mainspring.

Similar letters of reference designate corresponding parts in all the figures.

A designates the main wheel of the watch, which imparts motion to the movement, and B designates the mainspring, which. is coiled in a barrel at the side of the wheel A, and has one end permanently secured to the said wheel.

Outside of the back plate, C, of the move- I vided with holes, into which the said lugs or ment is a second wheel, D, which has connected to its center a cap-piece, E, which revolves withitand steadies it upon the main-wheel staff F of the watch. The piece E, which is pressed or stamped from sheet metal, has upon it, as clearly shown in Fig. 8, a hook or prong, a, under which the end of the mainspring fits and by the rotation ofwhich the said spring is coiled or wound up. As here represented, the wheel D is actuated from a stem-pinion, Cr,

through an intermediate wheel, H; but other mechanism might be employed for winding the watch. A spring, b, prevents the unwinding of the lnainspring B after the latter is wound up. A tongue or piece, (1, is also represented as cut from the wheel A and bent outward, to form a piece for the end of the mainspring to act on (see Fig. 6) to rotate the wheel A.

Upon the center-staff F, outside the front plate, I, is the cannon-pinion c, which imparts motion, through the minute-wheel f and hour pinion g, to the hour wheel I1. I form the pinion g in one and the same piece or disk of metal with the minute-'wheelf, by cutting the teeth of the minute-wheel on the periphery of the disk, and cutting out tongues or pieces 7; of proper shape, and bending them from the body of the disk outward at right angles to the face thereof, so as to form the leaves or teeth of thepinion, as clearly represented in Fig. 7.

To fasten the back plate, C, and front plate, 1, together, I cut from one-in this instance the back one-tongues or pieces j, which are afterward bent outward at right angles to the plate and form posts to hold the plates at proper distance apart. At the ends said tongues or pieces are shouldered, and the extreme end is riveted down over the other plate.

In order to facilitate the assembling of the movement and securing it to the case J, I have. represented lugs or knees is secured to the in side of the case, and the back plate as proknees tit and hold the movement trom turnin g in the case. In this instance several of the said lugs or knees are employed, and the holes for their reception are formed by cutting out and bending up the tongues or piecesj to form posts.

By my invention I provide for forming cer- IOO tain parts of toy watches very cheaply and for securing and assembling the several parts very expeditiously.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A gear-Wheel for a Watch, having tongues or pieces cut therefrom and bent outward at an angle to the body of the Wheel, forming the leaves or teeth of a pinion, substantially as specified.

2. The minute-Wheel f and the hour'pinion 9, made of a single piece or disk of sheet inetal, the teeth of the minute-Wheel being formed in the periphery of the said disk, and the teeth of the pinion being formed by tongues cut out from the body of the disk and turned out at an angle to the face thereof, substantially as described.

3. The front and back plates of a watchinoveinent secured together by means of 20 R. J. CLAY.

Witnesses:

HENRY T. BROWN, FREDK. HAYNES. 

